A biker pedals hard for 3 seconds. What is his initial velocity if he accelerated by 4m/s2 until he's going 20m/s. (Which equation should I use?)
![A biker pedals hard for 3 seconds What is his initial velocity if he accelerated by 4ms2 until hes going 20ms Which equation should I use class=](https://us-static.z-dn.net/files/d68/bc06e1733708288ef2caeda8f7cd872d.png)
Answer:
answer is option 4
Explanation:
you have to use option 4 because u need to find out initial velocity (Vi)